CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Total IBM Stockholders' Equity	Common Stock and Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income/(Loss)	Non-Controlling Interests	Total
Balance at the Beginning of the Period at Dec. 31, 2020	$ 20,597	$ 56,556	$ 162,717	$ (169,339)	$ (29,337)	$ 129	$ 20,727
Net income plus other comprehensive income/(loss):
Net income	955		955				955
Other comprehensive income/(loss)	1,080				1,080		1,080
Total comprehensive income/(loss)	2,036						2,036
Cash dividends paid - common stock	(1,457)		(1,457)				(1,457)
Common stock issued under employee plans	232	232					232
Purchases and sales of treasury stock under employee plans - net	(18)		2	(21)			(18)
Changes in noncontrolling interests						(6)	(6)
Balance at the End of the Period at Mar. 31, 2021	21,389	56,788	162,218	(169,360)	(28,257)	124	21,513
Balance at the Beginning of the Period at Dec. 31, 2021	18,901	57,319	154,209	(169,392)	(23,234)	95	18,996
Net income plus other comprehensive income/(loss):
Net income	733		733				733
Other comprehensive income/(loss)	703				703		703
Total comprehensive income/(loss)	1,436						1,436
Cash dividends paid - common stock	(1,475)		(1,475)				(1,475)
Common stock issued under employee plans	221	221					221
Purchases and sales of treasury stock under employee plans - net	(34)		(3)	(30)			(34)
Changes in other equity	0	63	(63)				0
Changes in noncontrolling interests						(33)	(33)
Balance at the End of the Period at Mar. 31, 2022	$ 19,050	$ 57,603	$ 153,401	$ (169,422)	$ (22,532)	$ 62	$ 19,112